Loose-leaf binder.



No. v68,z56. PATBNTED AUG. 23, 1904.

I. WIDE.

LOOSE LEAP BINDER.

PPLIUATION FILED APB. 25. 1904.

N0 MODEL.

= WTE-55.24;.,

No. '768,25`e.

UNITED STATES Patented August 23, 1904.

PATENT OFFICE.

IVAN WIDE, OF 'CHICAGQ-ILLINOIS.

LOOSE-LEAF BINDER.

SPECIFICATION forming part of Letters Patent No. 768,256, dated August23, 1904.

.Applicationled April 25, 1904:.

Toul/Z wwni, t may concern:

Be it known that I, IVAN Winn. a citizen of the United States, residingat Chicago, zin the ycounty-of Cook and State `of Illinois, haveinvented certain new and useful Improvements l in Loose-Leaf Binders, ofwhich the following is a specification.

rlhis invention, as stated, relates `to looseleaf binders, and refersparticularly to' an improved means for expanding and contracting tedline2 2 of Fig.. 1.- Fig. 3 is a longitudinal central section through thebinder, and

Fig. 4 is a perspective view of one of the saddle blocks forming part ofthe adjusting mechanism. l l

In the embodiment herein shown of this invention I provide alongitudinal back member 1, curved in cross-section and provided with.the integral end pieces 24and 3, the former of which has an opening 4.for receiving a socket key or wrench (not shown) by means of which thebinder is expanded and contracted. On its inner 'concave side the backI1 has two longitudinal ribs 5 extending parallel with each otherandforming between them a groove 6. Intermediate their ends the ribs 5have an opening 7, and'at theirends said ribs are provided with theraised portions 8 for receiving guide-plates 9, secured in any suitablemanner, as by the screws-10, tothe raised` portions 8 of said ribs. Nearits opposite ends the groove 6 is provided withthebearings 11.

An operatingshaft 12 is adapted v to lie within the groove 6 andl atits'opposite ends is provided with the reduced portions 13 for thebearings 11. One of its ends is also squared, as at 14:, to receive anoperating key or wrench. Near its center the shaft 12 isl fitted with afixed collar 15,'adapted to lie within the opening 7 in the ribs 5,l andat each side of said collar the shaft is provided with Serial Nb.204,781. (No model.)

right and left hand screw-threads 16 and 17, y

` respectively. f

Side members 18 and 1.9 are adapted to have aslidingengagement with theback 1. They are respectively provided with ends 2O and 21 and slidebeneath the guide-plates 9, the ends201and 21 passing between the endpieces 2 and 3 of the back and the outer edges of l said guide-plates. y

Saddle-blocks22 and 23 are mounted upon the operatingshaft 12 and areinternally screw-threaded to correspond with the screwthreads 16 and .17on said shaft. The upper faces of the saddle-blocks are provided withtwo Wedging-points 24 and 25,' facing each other. A cover-plate 26 issecured to `the upper face yof each saddle-block by means of screws v27.

Operating-rods 28 in pairs, rigidly secured at one( end to the sidemembers 18 and 19, near the middle portions thereof, extend diagonallyacross the binder, the rods of each pair crossing each other between thewedges 24 and 25 of one of the saddle-blocks.

Telescoping leaf holding pins 29 of the usual construction are mountedupon the side members 18 and 19, and said side members also carry theusual hinged covers 30.

To open or close the binder, a socket-key is placed upon the square 4portion 14 of the 'operating-shaft, 12 and said shaft rotated.

A rotation of the shaft imparts a longitudinal movement to thesaddle-blocks 22 and 23, said blocks sliding upon the ribs 5. A movementof the blocks toward theends of the binder moves the point of crossingof the operatingrods 28 of each pair toward the ends of the binder, andtherefore will cause the sides of the binder to move outwardly. Arotation of the operating-shaft in a contrary direction moves the'saddle-blocks toward the center of the binder, moving the 'point ofcrossing of IOO my invention without departing from the spirit and scopethereof. Therefore I desire to have it understood that I do not limitmyself to the particular construction herein shown and described.

I claim as my inventionl. In a loose-leaf binder, in combination, twoside members slidabl y supported with relation to each other; two rodscrossing` each other; each rod being rigidly secured at one of its endsto one of said side members; and means for changing the point ofcrossing ot' said rods to move said side members toward or from eachother.

2. In a loose-leaf binder, in combination, a back member; two sidemembers slidably snpported with relation to said back member; two rodscrossing each other; each rod being rigidly secured at one of its endsto one of said side members; and means for changing' the point ofcrossing ot' said rods to move said side members toward or from eachother.

3. In a loose-leatl binder, in combination, two side members slidabl ysupported with relation to each other; two rods crossing each other,each rod being rigidly secured at one of its ends to one of said sidemembers; a member embracing said rods at their point of crossing; andmeans for moving said member at a right angle with the line ot' movementoi' said side members.

4. In a loose-leaf binder, in combination, two side members slidablysupported with relation to each other; two rods crossing each other,each rod being secured at on(` oll its ing; and a shaft having' ascre\\'thread engagement with said member for moving said member atarightangle with the line ol movement of said side members.

In a loose-leaf binder, in combination; two side members slidablysupported with relation to each other; two pairs ol rods; the

rods of each pair crossing each other, each rod being secured at one oiits ends to one ol said side members and the two pairs extending inopposite directions; a member for each pair or' rods; said memberembracing said rods at their point of crossing; and means for movingsaid embracing members in opposite directions.

6. In a loose-leaf binder; in combimltion; two side members slidabl)vsupported with relation to each other; two pairs ol rods, the rods ofeach pair crossing each other, each rod being secured at one ol its endsto one of said side members and the two pairs extending in oppositedirections; a saddle-block `lor each pair of rods; said saddle-blockembracing said rods at their point of crossing; and a shaft having ascrew-thread engagement with said saddlc-blocks flior movingl said'saddle-blocks in opposite directions.

lVAN \'V l DIC. IVitnesses:

L. L. h/IILLnn, Geenen L. (lniximnn.

